parseKey is not a function

[filipw01]

After updating from 13.0.3 to 13.0.28 I'm getting this error when running generateApi from swagger-typescript-api

undefined:29
    const discriminatorKey = parseKey(discriminatorValue)
                             ^

TypeError: parseKey is not a function
    at interfaceTemplate (eval at compile (file:///Users/filip/projects/chilipiper/frontend/node_modules/eta/dist/eta.module.mjs:520:12), <anonymous>:29:30)
    at eval (eval at compile (file:///Users/filip/projects/chilipiper/frontend/node_modules/eta/dist/eta.module.mjs:520:12), <anonymous>:73:83)
    at Array.forEach (<anonymous>)
    at eval (eval at compile (file:///Users/filip/projects/chilipiper/frontend/node_modules/eta/dist/eta.module.mjs:520:12), <anonymous>:69:12)
    at Module.render (file:///Users/filip/projects/chilipiper/frontend/node_modules/eta/dist/eta.module.mjs:874:42)
    at Ie.renderTemplate (file:///Users/filip/projects/chilipiper/frontend/node_modules/swagger-typescript-api/dist/chunk-5FV4QLUU.js:24:10223)
    at je.createMultipleFileInfos (file:///Users/filip/projects/chilipiper/frontend/node_modules/swagger-typescript-api/dist/chunk-5FV4QLUU.js:40:2286)
    at async je.generateOutputFiles (file:///Users/filip/projects/chilipiper/frontend/node_modules/swagger-typescript-api/dist/chunk-5FV4QLUU.js:40:1096)
    at async je.start (file:///Users/filip/projects/chilipiper/frontend/node_modules/swagger-typescript-api/dist/chunk-5FV4QLUU.js:39:3903)
    at async vi (file:///Users/filip/projects/chilipiper/frontend/node_modules/swagger-typescript-api/dist/chunk-5FV4QLUU.js:41:4125)

[smorimoto]

Are you using a custom template?

[filipw01]

Yes, that's how I call it

generateApi({
    name: file.name,
    input: path.resolve(file.path),
    output: path.resolve(process.cwd(), getPath(file.name)),
    modular: true,
    silent: true,
    templates: path.resolve(process.cwd(), './templates'),
    unwrapResponseData: true,
    cleanOutput: true,
    codeGenConstructs: constructs => {
      return {
        ...constructs,
        Keyword: {
          ...constructs.Keyword,
          File: 'Record<string, any>',
          csv: 'string',
        },
      }
    },
    hooks: {
      onCreateRoute: routeData => {
        if (
          routeData.request.method === 'get' &&
          'payload' in routeData.request &&
          routeData.request.payload
        ) {
          console.warn(
            `Removing endpoint: ${routeData.raw.route} | Reason: GET endpoint with body is not supported by fetch`
          )
          return false
        }
        return routeData
      },
      onFormatTypeName: typeName => {
        if (typeName === 'Record') {
          return 'RecordType'
        }
      },
    },
  })

The templates are

api.ejs

<%
const { utils, route, config, modelTypes } = it;
const { _, pascalCase, require } = utils;
const apiClassName = pascalCase(route.moduleName);
const routes = route.routes;
const dataContracts = _.map(modelTypes, "name");
%>

import { HttpClient, FullRequestParams, RequestParams, ContentType, HttpResponse, QueryParamsType } from "./<%~ config.fileNames.httpClient %>";
<% if (dataContracts.length) { %>
import { <%~ dataContracts.join(", ") %> } from "./<%~ config.fileNames.dataContracts %>"
<% } %>

export class <%= apiClassName %><SecurityDataType = unknown> {
  // See templates/api.ejs we need this in order to send as parameter to request call
  serviceName = "<%~ config.fileName %>"
  /**
   * @deprecated Internal use only.
   */
  httpClient: HttpClient<SecurityDataType>

  constructor(config?: ConstructorParameters<typeof HttpClient<SecurityDataType>>[0]) {
    this.httpClient = new HttpClient(config)
  }

  /**
   * @deprecated Internal use only.
   * See src/http-client we need this so we can send service name to http-client so it knows
   * which service is calling it
   */
  request = <T = any, E = any>(params: FullRequestParams): Promise<T> => {
    return this.httpClient.clientRequest<T, E>({ ...params, serviceName: this.serviceName})
  }

  /**
   * @deprecated Internal use only.
   * See src/http-client we need this so we can send service name to http-client so it knows
   * which service is calling it
   */
   getServicePath = <Q extends QueryParamsType>(path: string, query?: Q): string => {
    const servicePath = this.httpClient.clientGetPath({ path, serviceName: this.serviceName });
  
    if (!query) return servicePath;
  
    const queryParams = this.httpClient.encodeQueryParams(query);
    return `${servicePath}?${queryParams}`;
  };

  <% routes.forEach((route) => { %>
      <%~ includeFile('./procedure-call.ejs', { ...it, route }) %>
      <%~ includeFile('./procedure-call-path.ejs', { ...it, route }) %>
  <% }) %>
}

data-contracts.ejs

<%
const { modelTypes, utils, config } = it;
const { formatDescription, require, _, Ts } = utils;
const camelCase = require('camelcase')
const parseKey = require('../utils/parseEnumKeys.cjs')
// Replaces enums with typescript map + union type
const enumTemplate = (contract) => {
  return `
  export const ${contract.name} = {
    ${contract.$content.map(content => `
      /**
        * @deprecated Discriminator consts are deprecated. Please use raw string instead
      */
      ${content.key}: ${content.value}`).join(',\n    ')}
  } as const
  export type ${contract.name} = ${contract.$content.map(content => content.value).join(' | ')};\n\n`;
}
const interfaceTemplate = (contract) => {
  // x-discriminator values comes from injectDiscriminatorConstant
  // defined under plugins/plugins.js
  if (contract['x-discriminator-parent']) {
    const discriminatedInterface = contract['x-discriminator-parent']
    const discriminatorProperty = contract['x-discriminator-property']
    const discriminatorValue = contract['x-discriminator-value']
    const discriminatorName = `${discriminatedInterface}Discriminator`
    const discriminatorKey = parseKey(discriminatorValue)
    const discriminatorAccess = `${camelCase(discriminatorName, {pascalCase: true, preserveConsecutiveUppercase: true})}.${discriminatorKey}`
    const oldDiscriminatorPiece = `${discriminatorProperty}: "${discriminatorValue}"`
    const newDiscriminatorPiece = `/** @see {@link ${discriminatorAccess}} */
      ${discriminatorProperty}: typeof ${discriminatorAccess}\n\n`
    
    // Replaces string with discriminator enum usage and add @see tsdoc
    const newContent = contract.content.replace(
      oldDiscriminatorPiece,
      newDiscriminatorPiece
    )
    return `/** @see {@link ${discriminatorAccess}} */
    export interface ${contract.name} {\r\n${newContent}};\n\n`;
  }
  return `export interface ${contract.name} {\r\n${contract.content}};\n\n`;
}
const typeTemplate = (contract) => {
  if (contract.discriminator) {
    const discriminatorName = `${contract.name}Discriminator`
    const content = Object.keys(contract.discriminator.mapping)
      .map(mapping => ({ key: parseKey(mapping), value: `'${mapping}'` }))
    // For each union schema containing a discriminator, creates the discriminator enum
    return `${dataContractTemplates.enum({ name: discriminatorName, $content: content })}
    /** @see {@link ${discriminatorName}} */
    export type ${contract.name} = ${contract.content};\n\n`;
  }
  return `export type ${contract.name} = ${contract.content};\n\n`;
}
const dataContractTemplates = {
  enum: enumTemplate,
  interface: interfaceTemplate,
  type: typeTemplate,
}
%>

<% if (config.internalTemplateOptions.addUtilRequiredKeysType) { %>
type <%~ config.Ts.CodeGenKeyword.UtilRequiredKeys %><T, K extends keyof T> = Omit<T, K> & Required<Pick<T, K>>
<% } %>

<% modelTypes.forEach((contract) => { %>
  <%~ includeFile('@base/data-contract-jsdoc.ejs', { ...it, data: { ...contract, ...contract.typeData } }) %>
  <%~ (dataContractTemplates[contract.typeIdentifier] || dataContractTemplates.type)(contract) %>
<% }) %>

procedure-call-path.ejs

<%
const { utils, route, config } = it;
const { specificArgNameResolver } = route;
const { _, getInlineParseContent } = utils;
const { parameters, path, query, requestParams } = route.request;
const { type } = route.response;
const { RESERVED_REQ_PARAMS_ARG_NAMES } = config.constants;
const queryName = (query && query.name) || "query";
const pathParams = _.values(parameters);
const pathParamsNames = _.map(pathParams, "name");

const requestConfigParam = {
    name: specificArgNameResolver.resolve(RESERVED_REQ_PARAMS_ARG_NAMES),
    optional: true,
    type: "RequestParams",
    defaultValue: "{}",
}

const argToTmpl = ({ name, optional, type, defaultValue }) => `${name}${!defaultValue && optional ? '?' : ''}: ${type}${defaultValue ? ` = ${defaultValue}` : ''}`;

const rawWrapperArgs = _
    .compact([
        ...pathParams,
        query,
    ])

const wrapperArgs = _
    // Sort by optionality
    .sortBy(rawWrapperArgs, [o => o.optional])
    .map(argToTmpl)
    .join(', ')

let getServicePathArgs = `\`${path}\``

if (query) {
    getServicePathArgs = `${getServicePathArgs}, query`
}
%>

/**
 * @description Returns string containing request path for <%~ route.routeName.usage %>
 */
<%~ route.routeName.usage %>PathGetter = (<%~ wrapperArgs %>) => this.getServicePath(<%~ getServicePathArgs %>)

[smorimoto]

Found 2 possible duplicate issues:

1. 13.0.22 is broken: [error] TypeError: Cannot read properties of undefined (reading 'split') #934
2. Failed to call utils.getComponentByRef because it missing the this #512

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