nvim-config/lua/user/lsp/settings/jsonls.lua

local default_schemas = nil
local status_ok, jsonls_settings = pcall(require, "nlspsettings.jsonls")
if status_ok then
  default_schemas = jsonls_settings.get_default_schemas()
end

local schemas = {
  {
    description = "TypeScript compiler configuration file",
    fileMatch = {
      "tsconfig.json",
      "tsconfig.*.json",
    },
    url = "https://json.schemastore.org/tsconfig.json",
  },
  {
    description = "Lerna config",
    fileMatch = { "lerna.json" },
    url = "https://json.schemastore.org/lerna.json",
  },
  {
    description = "Babel configuration",
    fileMatch = {
      ".babelrc.json",
      ".babelrc",
      "babel.config.json",
    },
    url = "https://json.schemastore.org/babelrc.json",
  },
  {
    description = "ESLint config",
    fileMatch = {
      ".eslintrc.json",
      ".eslintrc",
    },
    url = "https://json.schemastore.org/eslintrc.json",
  },
  {
    description = "Bucklescript config",
    fileMatch = { "bsconfig.json" },
    url = "https://raw.githubusercontent.com/rescript-lang/rescript-compiler/8.2.0/docs/docson/build-schema.json",
  },
  {
    description = "Prettier config",
    fileMatch = {
      ".prettierrc",
      ".prettierrc.json",
      "prettier.config.json",
    },
    url = "https://json.schemastore.org/prettierrc",
  },
  {
    description = "Vercel Now config",
    fileMatch = { "now.json" },
    url = "https://json.schemastore.org/now",
  },
  {
    description = "Stylelint config",
    fileMatch = {
      ".stylelintrc",
      ".stylelintrc.json",
      "stylelint.config.json",
    },
    url = "https://json.schemastore.org/stylelintrc",
  },
  {
    description = "A JSON schema for the ASP.NET LaunchSettings.json files",
    fileMatch = { "launchsettings.json" },
    url = "https://json.schemastore.org/launchsettings.json",
  },
  {
    description = "Schema for CMake Presets",
    fileMatch = {
      "CMakePresets.json",
      "CMakeUserPresets.json",
    },
    url = "https://raw.githubusercontent.com/Kitware/CMake/master/Help/manual/presets/schema.json",
  },
  {
    description = "Configuration file as an alternative for configuring your repository in the settings page.",
    fileMatch = {
      ".codeclimate.json",
    },
    url = "https://json.schemastore.org/codeclimate.json",
  },
  {
    description = "LLVM compilation database",
    fileMatch = {
      "compile_commands.json",
    },
    url = "https://json.schemastore.org/compile-commands.json",
  },
  {
    description = "Config file for Command Task Runner",
    fileMatch = {
      "commands.json",
    },
    url = "https://json.schemastore.org/commands.json",
  },
  {
    description = "AWS CloudFormation provides a common language for you to describe and provision all the infrastructure resources in your cloud environment.",
    fileMatch = {
      "*.cf.json",
      "cloudformation.json",
    },
    url = "https://raw.githubusercontent.com/awslabs/goformation/v5.2.9/schema/cloudformation.schema.json",
  },
  {
    description = "The AWS Serverless Application Model (AWS SAM, previously known as Project Flourish) extends AWS CloudFormation to provide a simplified way of defining the Amazon API Gateway APIs, AWS Lambda functions, and Amazon DynamoDB tables needed by your serverless application.",
    fileMatch = {
      "serverless.template",
      "*.sam.json",
      "sam.json",
    },
    url = "https://raw.githubusercontent.com/awslabs/goformation/v5.2.9/schema/sam.schema.json",
  },
  {
    description = "Json schema for properties json file for a GitHub Workflow template",
    fileMatch = {
      ".github/workflow-templates/**.properties.json",
    },
    url = "https://json.schemastore.org/github-workflow-template-properties.json",
  },
  {
    description = "golangci-lint configuration file",
    fileMatch = {
      ".golangci.toml",
      ".golangci.json",
    },
    url = "https://json.schemastore.org/golangci-lint.json",
  },
  {
    description = "JSON schema for the JSON Feed format",
    fileMatch = {
      "feed.json",
    },
    url = "https://json.schemastore.org/feed.json",
    versions = {
      ["1"] = "https://json.schemastore.org/feed-1.json",
      ["1.1"] = "https://json.schemastore.org/feed.json",
    },
  },
  {
    description = "Packer template JSON configuration",
    fileMatch = {
      "packer.json",
    },
    url = "https://json.schemastore.org/packer.json",
  },
  {
    description = "NPM configuration file",
    fileMatch = {
      "package.json",
    },
    url = "https://json.schemastore.org/package.json",
  },
  {
    description = "JSON schema for Visual Studio component configuration files",
    fileMatch = {
      "*.vsconfig",
    },
    url = "https://json.schemastore.org/vsconfig.json",
  },
  {
    description = "Resume json",
    fileMatch = { "resume.json" },
    url = "https://raw.githubusercontent.com/jsonresume/resume-schema/v1.0.0/schema.json",
  },
}

local function extend(tab1, tab2)
  if tab2 == nil then
    return tab2
  end
  for _, value in ipairs(tab2) do
    table.insert(tab1, value)
  end
  return tab1
end

local extended_schemas = extend(schemas, default_schemas)

local opts = {
  settings = {
    json = {
      schemas = extended_schemas,
    },
  },
  setup = {
    commands = {
      Format = {
        function()
          vim.lsp.buf.range_formatting({}, { 0, 0 }, { vim.fn.line "$", 0 })
        end,
      },
    },
  },
}

return opts