Kong/insomnia · error · TypeError

addQueryParams: invalid params: ${JSON.stringify(params)}

Error message

addQueryParams: invalid params: ${JSON.stringify(params)}

What it means

Error "addQueryParams: invalid params: ${JSON.stringify(params)}" thrown in Kong/insomnia.

Source

Thrown at packages/insomnia-scripting-environment/src/objects/urls.ts:276

    return undefined;
  }

  addQueryParams(params: QueryParamOptions[] | string) {
    if (typeof params === 'string') {
      // URLSearchParams is not used here as it encodes content
      const pairs = params.split('&');
      pairs.forEach(pair => {
        const parts = pair.split('=');
        this.queryParams = [...this.queryParams, new QueryParam({ key: parts[0], value: parts[1] })];
        // this.urlObject.searchParams.append(pair[0], pair[1]);
      });
    } else if (Array.isArray(params)) {
      params.forEach(pair => {
        this.queryParams = [...this.queryParams, new QueryParam({ ...pair })];
      });
    } else {
      throw new TypeError(`addQueryParams: invalid params: ${JSON.stringify(params)}`);
    }
  }

  getHost() {
    if (this.urlObject) {
      return this.urlObject.hostname;
    }
    return '';
  }

  getPath(_unresolved?: boolean) {
    if (this.urlObject) {
      return this.urlObject.pathname;
    }
    return '';
  }

  getPathWithQuery() {

View on GitHub (pinned to d9bb2b0142)

When it happens

Trigger: Thrown at packages/insomnia-scripting-environment/src/objects/urls.ts:276 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Kong/insomnia@d9bb2b0142 (2026-08-26). Data as JSON: /api/errors/f98852f15ebdb088. Report an issue: GitHub.